type acceptance report - aviation.govt.nz · 2020. 3. 29. · the model 412 is the same as the 212...

Aircraft Certification Unit

Type Acceptance Report TAR 99/21B/25 – Revision 2

BELL 212/412 Series

Type Acceptance Report

Rev.2 : 20 March 2015 TAR 99/21B/25 – Bell 212/412 i

TABLE OF CONTENTS

EXECUTIVE SUMMARY 1

1. INTRODUCTION 1

2. ICAO TYPE CERTIFICATE DETAILS 1

3. TYPE ACCEPTANCE DETAILS 2

4. NZCAR §21.43 DATA REQUIREMENTS 3

5. ADDITIONAL NEW ZEALAND REQUIREMENTS 8

ATTACHMENTS 9

APPENDIX 1 9


Rev.2 : 20 March 2015 TAR 99/21B/25 – Bell 212/412 1

Executive Summary

New Zealand Type Acceptance has been granted to the Bell Model 212/412 Series based

on validation of FAA Type Certificate number H4SW. There are no special requirements

for import.

Applicability is currently limited to the Models and/or serial numbers detailed in Appendix

1, which are now eligible for the issue of an Airworthiness Certificate in the Standard

Category in accordance with NZCAR §21.191, subject to any outstanding New Zealand

operational requirements being met. (See Section 5 of this report for a review of

compliance of the basic type design with the operating Rules.) Additional variants or serial

numbers approved under the foreign type certificate can become type accepted after supply

of the applicable documentation, in accordance with the provisions of NZCAR §21.43(c).

1. Introduction

This report details the basis on which Type Acceptance Certificate No. 99/21B/25 was

granted in the Standard Category in accordance with NZCAR Part 21 Subpart B.

Specifically the report aims to:

(a) Specify the foreign type certificate and associated airworthiness design standard

used for type acceptance of the model(s) in New Zealand; and

(b) Identify any special conditions for import applicable to any model(s) covered by the

Type Acceptance Certificate; and

(c) Identify any additional requirements which must be complied with prior to the issue

of a NZ Airworthiness Certificate or for any subsequent operations.

The report also notes the status of all models included under the foreign type certificate

which have been granted type acceptance in New Zealand. Models covered by the type

acceptance certificate issued under Part 21B are listed in Section 2 of this report. Models

which were accepted prior to that under NZCAR Section B.9 are listed in Appendix 1.

2. ICAO Type Certificate Details

Manufacturer: Bell Helicopter Textron

Bell Helicopter Textron Canada Limited

(212 s/n 35001 and 412 s/n 36001 on)

Type Certificate: H4SW

Issued by: Federal Aviation Administration


TAR 99/21B/25 – Bell 212/412 Rev.2 : 20 March 2015 2

Model: 212

MCTOW: 11,200 lb. [5080 kg]

Max. No. of Seats: 15

Noise Standard: Not Applicable

Engine: PT6T-3, -3B

Type Certificate: E-10

Issued by: Transport Canada

Model: 412

MCTOW: 11,600 lb. [5252 kg] (412 s/n 33001 thru 33107)

11,900 lb. [5398 kg] (412 s/n 33108–33213, 36001–36086)


Noise Standard: FAR 36, Subpart H, Amendment 36-14 (Stage 2)

Engine: PT6T-3B, -3BE, -3D, -3BF or -3BG



Model: 412EP

MCTOW: 11,900 lb. [5398 kg]


Noise Standard: FAR 36, Subpart H, Amendment 36-14 (Stage 2)

Engine: PT6T-3D, -3DE or -3DF





3. Type Acceptance Details

The application for New Zealand type acceptance of the 412SP was from Helicopters (NZ)

Ltd (Client no.12984) by 24021/02 dated 21 December 1998. The first-of-type example

was serial no. 33204, registered ZK-HNI. The Bell 212/412 is a large 15-seat twin-engined

Category A helicopter. (The Model 212 was accepted under NZCAR Section B.8 in 1975,

and included the PT6T Series engine based on Transport Canada Type Certificate E-10).

Type Acceptance Certificate No. 99/21B/25 was granted on 20 January 1999 to the Bell

Model 412 based on validation of FAA Type Certificate H4SW. Specific serial number

applicability is limited to the coverage provided by the operating documentation supplied.

There are no special requirements for import into New Zealand.

This report was raised to Revision 1 to include the Bell Model 412EP under CAA Work

Request 5/21B/8. The applicant was Helicopters (NZ) Ltd. Type acceptance was granted

on 22 September 2004. The first-of-type example was s/n 36099 registered ZK-HDY.

Revision 2 of this report was issued to add the later 412 serial number range, marketed as

the “412HP”, after application by the importer, Oceania Aviation Ltd. The first-of-type

was serial no.36055 registered ZK-IKA. Type acceptance was granted on 20 March 2015.

The Model 212 is basically a twin-engined version of the Model 205 UH-1H Iroquois. It

was originally developed for the Canadian military and subsequently civil certified and

approved for IFR operations. The Model 412 is the same as the 212 except for the use of a

new four-bladed rotor system. The metal rotor-head has elastomeric bearings and dampers.

There are two commercial variants of the 412 which are not reflected as different models

on the TCDS. The 412SP “Special Performance” version is the marketing name for serial

numbers 33108 thru 33213 and 36001 thru 36019, which have a higher maximum weight

and increased fuel capacity. The 412HP is the marketing name for serial numbers 36020

thru 36086 with the –3BE engine. Other changes were an improved transmission and pilot

controlled engine trim, which resulted in increased horsepower available for hover and

climb. The 412EP is a product improvement of the 412HP fitted with the -3D engine. This

has increased OEI capability resulting in improved Category A performance, and is fitted

with the Honeywell SPZ-7600 3-axis Dual Digital Automatic Flight Control System

instead of the previous analog 3-axis gyro system.



4. NZCAR §21.43 Data Requirements

The type data requirements of NZCAR Part 21B Para §21.43 have been satisfied by supply

of the following documents, or were already held by the CAA:

(1) ICAO Type certificate:

FAA Type Certificate Number H4SW

FAA Type Certificate Data Sheet number H4SW at Revision 29 dated Dec 8, 2014

– Model 212 approved 30 October 1970

– Model 412 approved 9 January 1981

– Model 412EP approved 23 June 1994

(2) Airworthiness design requirements:

(i) Airworthiness Design Standards:

The certification basis of the Model 212 is FAR Part 29 dated 1 February 1965,

Amend 29-1 and 29-2; FAR 29.473, 29.501, 29.663, 29.771, 29.903(c), 29.1323,

29.1505(b) of Amend 29-3; Special Conditions No 29-12-SW-1; and “Guidelines

For Helicopter Certification Using Vertical Takeoff Techniques From Ground

Level and Elevated Heliports” vertical takeoff criteria transmitted to Bell by FAA

SW-210 letter dated 3 February 1971. IFR Instrument Requirements for Bell Model

212 helicopters transmitted by SW-210 (SW-216 letter dated 1 July, 1970).

Ditching: FAR 29.801 including FAR 29.1411 and 29.1415.

For the Model 412 Special Conditions No. 29-12-SW-1 was raised to Amend 1 and

IFR standards were revised dated December 15, 1978. Two Exemptions were

granted by the FAA, which have been reviewed and accepted by the CAA. The 412

complied with Category A engine isolation requirements.

This certification basis was carried over to the Model 412EP, except that various

paragraphs of FAR Part 29 were assessed against a later Amendment status, as

detailed on the TCDS, plus Special Conditions.

This is an acceptable certification basis in accordance with NZCAR Part 21B Para

§21.41, as FAR 29 is the basic standard for Transport Category Rotorcraft called up

under Part 21 Appendix C. There are no non-compliances and no additional special

conditions have been prescribed by the Director under §21.23.

(ii) Special Conditions:

Models 212/412/412EP:

Special Conditions No.29-12-SW-1– Additional requirements were imposed on the Model

212 based on later FAR 29 Amendment provisions. Amendment 1for the Model 412 added new

provisions for a takeoff power check procedure; engine failure warning system; fatigue evaluation

of revised flight structure; and new Maintenance Manual critical components replacement times.

Model 412EP:

Special Conditions No.29-ASW-5 – For the search and rescue (SAR) configuration the 412 is

fitted with a dual 4-axis automatic flight control system (AFCS), an integrated flight display system

(IFDS) and additional navigation systems. This SC required protection for electrical/electronic

systems which perform critical functions from exposure to high intensity radiated fields (HIRF).



(iii) Equivalent Level of Safety Findings:

Models 212/412/412EP:

FAR §29.501(e) One-skid landing loads in the level attitude – Bell had never static

tested or analysed the gear support structure for this condition. An ELOS was granted to cover this

oversight based on service history of no failures, incidents or accidents due to one skid landings.

(iv) Exemptions:

Models 412/412EP:

Exemption No. 3100 against FAR 29.1323(c) – The FAA allowed both an increase in the

calibration error of the airspeed indicating (ASI) system for defined speed ranges and a change in the

level flight speed at which the maximum error must be achieved. Bell contended that it is virtually

impossible to achieve the current required accuracy because of the complicated interaction between

rotor downwash velocity and low aircraft airspeed. Further such accuracies are not needed for safety

at those speeds, and it is more important that the speed indications are readable and repeatable.

Exemption No. 5985 against FAR §29.1303(g)(1) – This requires a standby (third) attitude

indicator useable through ±80° of pitch. A dispensation was given on the basis that pitch angles

greater than ±60° were highly unlikely and prohibited by the approved operating limitations.

(v) Airworthiness Limitations:

See the FAA-Approved Chapter 4 “Airworthiness Limitations Schedule” of the

applicable Maintenance Manual.

(3) Aircraft Noise and Engine Emission Standards:

(i) Environmental Standard: The Models 412 and 412EP have been certificated for noise under FAR Part 36,

including Amendments 36-1 through 36-14.

(ii) Compliance Listing:

Bell Report 412-099-094 Volume 1 – June 1991 – Noise Certification Compliance

of the Model 412 Helicopter. (See also RFM Section 4.10 or 4.11 Noise Levels.)

Effective Perceived Certified Noise Levels:

Model: MCTOW: Takeoff: Flyover: Approach:

Bell “412SP” 11,900 lb 93.2 EPNdB 93.4 EPNdB 95.6 EPNdB

Bell “412HP” 11,900 lb 92.8 EPNdB 93.4 EPNdB 95.6 EPNdB

Bell 412EP 11,900 lb 92.8 EPNdB 93.4 EPNdB 95.6 EPNdB

(4) Certification Compliance Listing:

List “Model 212 Certification Program Reports”

Bell Report 212-099-004 – Basic Design Loads Model 212 Helicopter

Bell Report 212-099-005 – Structural Analysis of Model 212 Components Different

from Model 205A (various volumes)

Bell Report 212-099-018 – Fatigue Life Substantiation of Dynamic Components

Bell Report 212-099-052 – Summary Flight Test Report Model 212 Helicopter

Bell Report 212-099-052 Addendum IV – Type Inspection Report



Bell Report 212-099-151 – Drive Train Vibration Survey of Model 212

Bell Report 212-099-343 – Electrical Load Analysis (s/n 30680 subq in std. config.)

Rpt 212-099-453 – Bell 212 Automatic Flight Control System Reliability Analysis

Bell Helicopter Textron – Model 412 Compliance Checklist 12-18-80

FAA Compliance Checklist for BHT Model 412 with PT6T-3D Engine – FAA

Project Number SW-170-776 – dated 26 August 1993

Bell Model 412EP Compliance Checklist for Electrical/Electronic Installations –

FAA Project Number SW-170-915 – dated 31 August 1994

Compliance Checklist Model 412 Cockpit Voice Recorder/Flight Data Recorder –

FAA Project Number SW-170-546 – Rev.A dated September 1994

FAA Compliance Checklist Model 412 Dual Digital AFCS/SAR “Auto Approach

to Hover” – FAA Project Number SW-170-553 – dated 22 September 1994

(5) Flight Manual:

Bell 212 FAA-Approved Rotorcraft Flight Manual – Pub. BHT-212VFR-FM-1

(Applicable to VFR Configuration) – CAA Approved as AIR 2247

Bell 212 FAA-Approved Rotorcraft Flight Manual – Pub. BHT-212IFR-FM-1

(Applicable to IFR Configuration) – CAA Approved as AIR 2136

Bell 412 FAA-Approved Rotorcraft Flight Manual – Publication BHT-412-FM-1

(Applicable to s/n 33001-33107) – CAA Accepted as AIR 2796


(Applicable to s/n 33108-33213, 36001-36019) – CAA Accepted as AIR 2647

Bell 412EP FAA-Approved Rotorcraft Flight Manual – Publication BHT-412-FM-4

(s/n BHT 36087 and subsequent) – CAA Accepted as AIR 2876


(Applicable to s/n 36020-36086, and 412SP to HP Upgrade helicopters (412SP to HP

Upgrade kit 412-704-052 installed per BHT-412-SI-74 or helicopters modified in

accordance with 412-570-001-103)) – CAA Accepted as AIR 3307

(6) Operating Data for Aircraft and Engine:

(i) Maintenance Manual:

Bell 212 Maintenance Manual – Publication BHT-212-MM-1

Bell 412 Maintenance Manual – Publication BHT-412-MM-1

Bell 412 Component Overhaul Manual – Publication BHT-412-CR&O-1



(ii) Current service Information:

Bell 212 and 412 Alert Service Bulletins / Bell 212 and 412 Technical Bulletins

Bell 412 Operator Service Notices / Bell 412 Information Leaflets

(iii) Illustrated Parts Catalogue:

Bell 212 IPB – Publication BHT-212-IPB-1

Bell 412 IPB – Publication BHT-412-IPB-1

(7) Agreement from manufacturer to supply updates of data in (5), and (6):

Letter from Giffen A. Marr, Chief, Civil Certification & Regulatory Requirements,

Bell Helicopter Textron, dated December 14 1998 – Reference 81:PBL-15322.

Publications are now available through the website www.bellhelicopter.net

(8) Other information:

FAA MasterMEL for Bell 212, 412 at Revision 5c dated 11/17/93

Derivation of the Bell Model 412EP – dated 01/05/95

Bell Helicopter Report No.412-970-004 – Preliminary Electrical Load Analysis for

Model 412 Helicopter in production FAA/IFR Configuration – dated 10/9/80

Bell Helicopter Spec. No. 412-947-001 – Detail Specification for Model 412

Commercial Helicopter (S/N 33001-33100) – dated 2 September 1981

http://www.bellhelicopter.net/



5. Additional New Zealand Requirements

Compliance with the retrospective airworthiness requirements of NZCAR Part 26 has been

assessed as they are a prerequisite for the grant of an airworthiness certificate.

Civil Aviation Rules Part 26

Subpart B – Additional Airworthiness Requirements Appendix B – All Aircraft

PARA: REQUIREMENT: MEANS OF COMPLIANCE:

B.1 Marking of Doors and Emergency Exits To be determined on an individual aircraft basis

B.2 Crew Protection Requirements – CAM 8 Appdx. B # .35 Not Applicable – Agricultural Aircraft only

Appendix E – Helicopters


E.1 Doors and Exits FAR Part 29.783(c) and (e)

E.2.1 Emergency Exit Marking FAR Part 29.809(c)

Compliance with the following additional NZ operating requirements has been reviewed

and were found to be covered by either the original certification requirements or the basic

build standard of the aircraft, except as noted:


Subpart F – Instrument and Equipment Requirements


91.505 Shoulder Harness if Aerobatic; >10 pax; Flight Training Standard fit – See BHT-IPB

91.507 Pax Information Signs – Smoking, safety belts fastened N/A – Has direct communication with cockpit (See Note 5

of TCDS for a limitation on any partitions or linings).

91.509

Min. VFR

(1) ASI

(2) Machmeter (3) Altimeter

(4) Magnetic Compass

(5) Fuel Contents (6) Engine RPM

(7) Oil Pressure

FAR §29.1303(a)

N/A – No Mach limitations FAR §29.1303(b)

FAR §29.1303(c)

FAR §29.1305(a)(3) FAR §29.1305(a)(11)

FAR §29.1205(a)(6)

(8) Coolant Temp

(9) Oil Temperature (10) Manifold Pressure

(11) Cylinder Head Temp.

(12) Flap Position (13) U/c Position

(14) Ammeter/Voltmeter

N/A – Turbine powered.

FAR §29.1305(a)(8) N/A – Turbine powered.

N/A – Turbine powered.

N/A – Not fitted N/A – Fixed undercarriage.

FAR §29.1251(b)(6)

91.511 Night

(1)Turn and Slip (2) Position Lights

BHT-412-MD-2 p 2-7 BHT-412-MD-2 p 2-34

(3) Anti-collision Lights (4) Instrument Lighting

BHT-412-MD-2 p 2-35 BHT-412-MD-2 p 2-34

91.513 VFR Communication Equipment Operating Rule – Compliance to be determined by operator

91.517

IFR

(1) Gyroscopic AH

(2) Gyroscopic DI

(3) Gyro Power Supply (4) Sensitive Altimeter

BHT-412-MD-2 p 2-7

BHT-412-MD-2 p 2-7

FAR §29.1331(a)(3) FAR §29.1303(b)

(5) OAT

(6) Time in hr/min/sec

(7) ASI/Heated Pitot (8) Rate of Climb/Descent

FAR §29.1303(e)

BHT-412-MD-2 p 2-7

BHT-412-MD-2 p 2-26 BHT-412-MD-2 p 2-7

91.519 IFR Communication and Navigation Equipment Operating Rule – Compliance to be determined by operator

91.523

Emrgcy Eqpmt.

(a) More Than 9 pax - First Aid Kits per Table 7

- Fire Extinguishers per Table 8 (b) More than 20 pax - Axe readily accessible to crew

(c) More than 61 pax - Portable Megaphones per Table 9

Operating Rule – Compliance to be determined by operator

Operating Rule – Compliance to be determined by operator Not Applicable – Less than 20 passenger seats

Not Applicable – Less than 61 passenger seats

91.529 ELT - TSO C126 406 MHz after 22/11/2007 Operating Rule – Compliance to be determined by operator

91.531 Oxygen Indicators - Volume/Pressure/Delivery Operating Rule – Compliance to be determined by operator

91.533 Unpress.

A/c

>30 min above FL100 - Supplemental for crew, 10% Pax - Therapeutic for 3% of Pax

Above FL100 - Supplemental for all Crew, Pax

- Therapeutic for 1% of Pax - 120l PBE for each crew member

Not fitted as standard.

91.541 SSR Transponder and Altitude Reporting Equipment Operating Rule – Compliance to be determined by operator

91.543 Altitude Alerting Device - Turbojet or Turbofan Not Applicable – Not turbojet or turbofan powered

91.545 Assigned Altitude Indicator Not Applicable – Aeroplanes only

A.15 ELT Installation Requirements To be determined on an individual aircraft basis




Subpart F – Instrument and Equipment Requirements


135.355 Seating and Restraints – Shoulder harness flight-crew seats FAR §29.785(b)

135.357 Additional Instruments (Powerplant and Propeller) FAR §23.1305

135.359 Night Flight Landing light, Pax compartment BHT-412-MD-2 p 2-24

135.361 IFR Operations Speed, Alt, spare bulbs/fuses Operating Rule – Compliance to be determined by operator

135.363 Emergency Equipment (Part 91.523 (a) and (b)) Operating Rule – Compliance to be determined by operator

135.367 Cockpit Voice Recorder See FAA H4SW TCDS Note 28 for production provisions

135.369 Flight Data Recorder HNZ have had modifications approved to fit FDRs as follows: Mod. TD00802 approved as 4/MOD/17 for ZK-HNI; Mod. 31-31-12 approved as 3/MOD/138 for ZK-HDA

Exemption 5/EXE/8 granted to ZK-HDY because of the short-term nature of the contract.

135.371 Additional Attitude Indicator Not Applicable – Not turbo jet or turbofan powered

Attachments

The following documents form attachments to this report:

Photographs first-of-type example Bell 412 s/n 33204 ZK-HNI

Three-view drawing Bell Helicopter Model 412

Copy of FAA Type Certificate Data Sheet Number H4SW

Sign off

…………………………………….. ……………………………...............

David Gill Checked – Andrea Wadsworth

Team Leader Airworthiness Airworthiness Engineer

Appendix 1

List of Type Accepted Variants:

Model: Applicant: CAA Work Request: Date Granted:

212 AC 21-1.2/NZCAR Part 21 Appendix A(c)

412 Helicopters (NZ) Limited 99/21B/25 20 January 1999

(s/n 33108-33213 and 36001-36019 – Commercial Model 412SP)

412EP Helicopters (NZ) Limited 5/21B/8 22 September 2004

(s/n 36087-36999)

412 Oceania Aviation Limited 15/21B/14 20 March 2015

(s/n 36020-36086 – Commercial Model 412HP)

type acceptance report - aviation.govt.nz · 2020. 3. 29. · the model 412 is the same as the 212...

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